How to modify the path of mysql

1. Back up MySQL data

To avoid data loss or damage, you must back up the original data before changing the MySQL path. The specific method to back up the MySQL database is to use the mysqldump command that comes with MySQL

1. Open the command prompt or terminal window;

2. Switch to MySQL In the bin directory under the installation directory;

3. Run the following command to back up MySQL data, where username and password are the MySQL username and password respectively:

   mysqldump -u username -p password --all-databases > backup.sql

4. When prompted for a password, enter the MySQL password and wait for the command to complete the backup operation.

After the backup is completed, you can save the backup file to another directory to avoid being overwritten when the MySQL path is modified.

2. Modify the MySQL path

After backing up the MySQL data, you can start modifying the MySQL path. The specific steps are as follows:

1. Close the MySQL service and process. You can find the MySQL service in the services of the Windows system and stop it, or use the following command to end the MySQL process in the terminal:

   taskkill /f /pid mysql process ID

2. Copy the MySQL installation directory to the new path location. You can use commands such as folder copy or xcopy to perform copy operations.

3. Modify the MySQL configuration file my.ini file. Follow the steps below to create a my.ini file under the new path and set the new path for MySQL: 1. Go to the new path, right-click on the blank space, and select "New" -> "Text Document". 2. Rename the new text document to "my.ini". 3. Right-click the my.ini file and select "Edit". 4. In a text editor, add the following, replacing the new path to MySQL: [mysqld] basedir= datadir=\data 5. Save and close the my.ini file. Now, you have successfully created the my.ini file under the new path and set the new path for MySQL

   [mysqld]
   basedir=C:
   ewpathmysql
   datadir=C :
   ewpathdata

The installation path of MySQL is represented by basedir, and the path to store data is represented by datadir. The new path should be set to the superior directory of the MySQL installation directory.

4. Modify environment variables. In Windows systems, the new MySQL path needs to be added to the system environment variables so that other programs can call MySQL. The specific method is as follows:

   Right-click "My Computer" or "This Computer" and select "Properties";

   Click the "Advanced System Settings" tab;

   Click "Environment Variables" button;

   Find the "Path" variable in "System Variables" and double-click to open the editing window;

   Add a new MySQL path at the end of the variable value, be careful to use points Separated by a sign (;);

   Click "OK" to close the window and save the changes.

3. Restart the MySQL service

After completing the above steps, the MySQL service or process must be restarted to ensure the normal operation of MySQL. MySQL can be started through the service control manager of the Windows operating system or directly in the command line terminal.

Start MySQL in the service control manager:

1. Open the "Service" controller and find the MySQL service;

2. Right-click the service and select "Start".

Start MySQL in the terminal:

1. Open a command prompt or terminal window;

2. Switch to the bin directory of the MySQL installation directory;

3. Run the following command to start MySQL:

   mysqld --console

4. When the MySQL process outputs "ready for connections" in the terminal, it means that MySQL has been started successfully and you can proceed to the next step.

4. Restore MySQL data

After completing the above steps, you can use the backup file to restore the data to the new MySQL path. The specific method of recovering data is as follows:

1. Open the command prompt or terminal window;

2. Switch to the bin directory of the MySQL installation directory;

3. Run the following command to restore the backup file back to MySQL:

   mysql -u username -p password < backup.sql

4. When prompted for a password, enter the MySQL password and wait for the command to complete the data recovery operation.

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